U.S. authorities in Pakistan could have sought - but did not - a full background security investigation of San Bernardino shooter Tashfeen Malik before granting her a visa to enter the United States in 2014, according to a U.S. official familiar with the matter.
Under the U.S. "Visa Security Program," consular officials in American embassies overseas can ask U.S. Immigration and Customs Enforcement agents stationed in the embassies to produce a "Security Assessment Opinion," or SAO, before the consulate decides whether to approve a U.S. visa application.
It was the latest twist in the case of U.S.-born Syed Rizwan Farook, 28, his Pakistani-born wife, Malik, 29, who investigators said became radicalized long before they killed 14 people in a shooting rampage in San Bernardino, California, on Dec. 2.